Nonequilibrium Heating of Powders Under Shock Loading

Abstract

Nonequilibrium heat release in powders under shock loading is strongly coupled with viscoplastic nonuniform material flow during the densification process (see Chapter 2). At the same time, the essential difference in time scales for mechanical and thermodynamical equilibrium for relatively large particles makes possible the decoupling of mechanical processes on the stage of compaction and the subsequent phenomena connected with heat diffusion. This is also possible due to the weak dependence of shock macroparameters on the details of energy release.

Keywords

Shock Wave Boron Nitride Shock Front Shock Compression Shock Pressure

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